The same system will dump more heavy snow in the higher elevations, which will help raise critical reservoir levels.

该天气系统将导致高海拔地区大量降雪，使水库达到警戒水位。

The cuts are based on a plan the seven states and Mexico signed in 2019 to help maintain reservoir levels.

这一削减是基于七个州和墨西哥在2019年签署的一项计划，以帮助维持水库水平。

Scientists use things like satellites, reservoir levels, and rain data to tell if areas are drier than average.

科学家使用卫星、水库水位和降雨数据等信息来判断地区是否比平均水平干燥。

The reservoir level needs to drop by meters. So far, only a fraction of a meter has been drained, and the dam remains vulnerable.

水库的水位需要下降几米。到目前为止，只有不到一米的水位被抽干，大坝仍然很脆弱。

Photos from a few hours earlier didn't show anything  unusual, but now the top of the embankment sank down nearly to the reservoir level.

几个小时前的照片并没有显示出任何异常情况，但现在堤坝顶部几乎下沉至水库水平。

International Atomic Energy Agency says Ukraine's upper region nuclear power plant upstream of the dam has enough backup water options to keep the site safe if reservoir levels continue to drop.

国际原子能机构说，如果水库水位继续下降，位于大坝上游的乌克兰上游地区核电站有足够的备用水可供选择，以确保现场的安全。

As a result,   if a severe storm were to come, the dam wouldn't be able to release enough water to prevent the  reservoir level from climbing above the top of the structure, overtopping it and likely causing  it to fail.

因此， 如果一场严重的暴风雨来临，大坝将无法释放足够的水来防止水库水位上升到建筑物顶部之上，超过它并可能导致其溃坝。